BUFC vs SPBU

BUFCBAB Conservative Buffer ETF

SPBUDAllianzIM Buffer15 Uncapped Allocation ETF

In short

BUFC Most buffer funds lock you into a 12-month outcome period. BUFC resets every three months, targeting 15% downside protection against the S&P 500 with roughly 3% of the upside per period. Deep cushion, short leash.

SPBU Most buffer ETFs cap your upside. SPBU skips the ceiling: its twelve underlying funds take a stated spread off the S&P 500 ETF's return instead, while buffering the first 15% of losses. Laddered monthly, so no single start date defines your year.

Stated mandate

BUFC The Fund is an actively managed equity ETF seeking conservative capital appreciation with potential partial downside protection. It uses options to establish an upside cap and downside protection over rolling three-month periods, targeting 15% downside protection and about 3% upside participation to the S&P 500.

SPBU The Fund seeks to achieve its objective through a laddered portfolio of twelve AllianzIM U.S. Equity Buffer15 Uncapped ETFs. The underlying strategy seeks to track SPY market-price returns over specified one-year periods while protecting against the first 15% of SPY losses, subject to a stated spread.

Why people hold it

• BUFC Uses options to target 15% downside protection against the S&P 500 over rolling three-month periods, so the cushion resets four times a year instead of once.alliancebernstein.com
• At 0.69%, it costs less than Innovator's 0.79% Power Buffer funds (PJUL, PJAN, POCT) and less than the typical fund in its buffer cohort.
• Actively managed rather than pinned to a calendar index series, running since 2023, and among the stronger implementations in its buffer peer group.

• SPBU No upside cap. The underlying Buffer15 Uncapped funds subtract a stated spread from the S&P 500 ETF's one-year return rather than stopping gains at a ceiling.
• Twelve overlapping one-year outcome periods in one ticket, so the portfolio staggers its resets instead of hanging on a single entry date.
• The 15% buffer is written into the design: the underlying strategy absorbs the first 15% of S&P 500 ETF losses over each one-year period.
• At 0.79%, the fee sits right at the median for its buffered S&P 500 peer group, so the uncapped twist costs no premium over standard capped 15% buffers.

Worth knowing

• BUFC The price of that deep cushion: upside participation is targeted near 3% per three-month period, so big rallies mostly pass you by.
• Protection is partial and period-based. Losses past the targeted 15% pass through, and buying mid-period shifts your effective buffer and cap.alliancebernstein.com
• Thinly traded for its size, so spreads and limit orders deserve attention.

• SPBU The spread is what you pay for no cap. Upside arrives as the index return minus that stated spread, so the fund trails plain S&P 500 exposure in strong years.
• Cost isn't the edge here. Another laddered buffer fund in the same group, BUFF, charges 0.10% at the fund level.
• Launched in 2025 and thinly traded, so the track record is short and the gap between bid and ask can matter as much as the expense ratio.

Full BUFC profile⁠

Full SPBU profile⁠